Sunday, December 5, 2021

This scarily smart technology just revealed 301 new planets

Looking to the future, astronomers are excited to see how machine learning — aka. deep learning and artificial intelligence (A.I.) — will enhance surveys.

One field that is already benefitting in the search for extrasolar planets, where researchers rely on machine-learning algorithms to distinguish between faint signals and background noise.

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Publisher: Inverse
Twitter: @inversedotcom
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Giant planets could reach 'maturity' much earlier than previously thought, study reveals --

An international team of scientists, in which researchers from the Instituto de Astrofísica de Canarias (IAC) participate together with other institutions from Spain, Italy, Germany, Belgium, UK, and Mexico, has been able to measure the masses of the giant planets of the V1298 Tau system,

Publisher: ScienceDaily
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This hellish planet could come equipped with "lava oceans"

Hell, it may turn out, is about 30 light years away, on a smallish planet orbiting a smallish star. Its name isn't Hades — it's GJ 367b.

Imagine a planet around three-quarters the size of Earth — larger than Mercury , but smaller than Mars — and as dense as pure iron. It's barely more than the metallic core of a large planet.

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Publisher: Inverse
Twitter: @inversedotcom
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Climate change turned Venus into a hellscape. Is Earth next? - Vox

"Hellscape" is the most appropriate word to describe the surface of Venus, the second planet from the sun. At 900 degrees Fahrenheit, it's the hottest planet in the solar system, thanks to an atmosphere that's almost entirely made up of carbon dioxide.

"It's really almost entertainingly, comically horrible, like some sort of cosmic deity had a really, really grumpy day and just went 'Nope, I'm gonna ruin this planet,'" Robin George Andrews , a science journalist and volcanologist, says.

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Publisher: Vox
Date: 2021-12-01T13:30:00-05:00
Author: Brian Resnick
Twitter: @voxdotcom
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Could humans have evolved on other planets, too? - Genetic Literacy Project

Could it be that our species is the principal indigenous race in the Universe – that Homo sapiens , or something close to it, has evolved independently on multiple other worlds?

The late evolutionary biologist Stephen J Gould found this idea preposterous. He argued that if you re-ran evolution here on Earth – never mind on some bonkers planet 300 light-years away – then the probability of getting humans a second time round is vanishingly small.

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Publisher: Genetic Literacy Project
Date: 2021-12-03T05:06:15 00:00
Twitter: @GeneticLiteracy
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Sky This Month: December 2021 | Astronomy.com

December's early-evening sky offers a slew of planetary views, beginning with Venus, Saturn, and Jupiter — all on show soon after sunset.

The first planet to appear after sunset is Venus , hanging low in the southwest. It reaches greatest brilliancy Dec. 4, when it shines at magnitude –4.9, easily piercing the bright twilight.

Publisher: Astronomy.com
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effects of solar eclipse: Solar Eclipse December 2021 - Times of India
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Publisher: The Times of India
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NASA video shows possibility of multi-planet existence | wtsp.com

The answer is, "probably not," but that hasn't stopped the minds at NASA from imagining a future where the possibility of a multi-planet existence could become a reality. 

In a video released by NASA Goddard on YouTube, space lovers can see themselves lifting off on a rocket labeled "Exoplanet Travel Bureau" before taking off to participate in some out-of-this-world activities.

Publisher: wtsp.com
Date: 8:46 PM EST December 3 2021
Twitter: @10TampaBay
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Mercury as the relic of Earth and Venus' outward migration

In spite of substantial advancements in simulating planet formation, the planet Mercury's diminutive mass, isolated orbit, and the absence of planets with shorter orbital periods in the solar system continue to befuddle numerical accretion models.

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